To illustrate how generics are used in the Java Collections Framework, let’s look at some examples. List and ArrayList with generics. In the above example, we already briefly explored a simpler ...

For example, java.util.Set<E> is a generic type, <E> is its formal type parameter list, and E is the list’s solitary type parameter. Another example is java.util.Map<K, V>.

Remove Java List duplicates through code. The first two examples to solve this deduping problem use specialized Java components and APIs. However, it’s a fun exercise to just use the standard loop ...